Centrifugal liquid-separator.



No. 787,746. PATENTED APR. 13, 1905.

. J; I. FRIEDRICH.

GENTRIPUGALLIQUID SEPARATOR.

APPLICATION FILED FEB. 26. 1901.

F .Z i Y 5 Q a I.

N m 1 W v ,1

,0 b M v i A v ,4 we m \J UNITED STATES Patented April 18, 1905.

PATENT OFFICE.

CENTRIFUGAL LlQUlD-SEPARATOR- SPECIFICATION forming part of LettersPatent No. 787,746, dated April 18, 1905.

7 Application filed February 26, 1901. Serial No. 48,939.

To all whom it may concern.-

Be it known that I, JoHANN IGNAZ FRIED- RICH, a citizen of Germany, anda resident of Dusseldorf, Germany, have invented certain new and usefulImprovements in Centrifugal Separators, of which the following is aspecification.

This invention relates to an improved centrifugal separator for quicklyand thoroughly separating the cream from the milk.

In the accompanying drawings, Figure l is a longitudinal section throughmy improved centrifugal separator. Figs. 2, 3, and 4: are similarsections through modifications thereof.

In Fig. 1 a series of spheres a, and in Fig. 2 a series of double conesct, are nested one within the other, so that their inner ends areequidistant from the axis of the separator. In Fig. 3 a number ofhemispheres are arranged above one another.

The milk enters a central tube 2 and flows through lateral nozzles intothe innermost chamber. This chamber is surrounded by a nest ofadditional chambers that communicate with one another at their center orneutral zone by staggered openings m. The chams bers also communicatewith each other by upper and lower openings 0, formed along the axis ofthe apparatus and arranged in alinement with each other. From theinnermost chamber the milk passes consecutively through the outerchambers by means of the transposed openings m, so that the milk musttraverse each of the chambers before being discharged into thesucceeding chamber. \Vhile traversing any one chamber the milk will berelieved of part of its cream, such sep arated cream passing off throughthe openings 0. From near the axis of the outermost chamber the creamescapes through outlet The skimmed milk is discharged from the neutralzone of the outermost chamber by outlets m'. The passage of theskim-milk from chamber to chamber is effected throughalternately-arranged openings m. The various chambers will rotate all inone and the same direction as controlled by the rotation of the drum,and each division or layer of the milk will progressin its ownparticular zone only. Thus the milk proper or full milk will flow alongthe neutral zone, the skim-milk along the skim-milk zone, while thecream passes from the various chambers freely out around the commonaxis. The various partitions must therefore be arranged at aninclination toward the axis and grouped around the same,

with their ends at equal distances. The shape of the partitions can bespherical, coniform, or similar, such as coniform partitions inspherical shells of superposed spherical partitions in coniform shells.forms various combinations can be arranged and the upper or lower halvesonly of Figs. 1 and 2 may be employed.

That I claim is A separator composed of an inlet-pipe, surroundingpartitions to form a series of nested chambers which communicate witheach other by a first set of alined perforations along the inlet-pipeandby a second set of staggered perforations at points of the partitionslocated at the greatest distance from the inletpipe, and means forseparately discharging the cream and the skimmed milk from the outermostchamber, substantiallyas specified.

Thus with various Signed by me at Dusseldorf, Germany, this 13th day ofFebruary, 1901.

JOHANN IGNAZ FRIEDRICH.

Witnesses:

WM. ESSENWEIN, P. LI EBER.

